qcam: Add JPEG format support

When the camera provides MJPEG, use the QImage JPEG decompression code
to convert that to RGB.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>

1 files changed, 8 insertions, 1 deletions

diff --git a/src/qcam/format_converter.h b/src/qcam/format_converter.h
index 196064c7..396d0bea 100644
--- a/src/qcam/format_converter.h
+++ b/src/qcam/format_converter.h
@@ -7,15 +7,22 @@
 #ifndef __QCAM_FORMAT_CONVERTER_H__
 #define __QCAM_FORMAT_CONVERTER_H__
 
+#include <stddef.h>
+
+class QImage;
+
 class FormatConverter
 {
 public:
 	int configure(unsigned int format, unsigned int width,
 		      unsigned int height);
 
-	void convert(const unsigned char *src, unsigned char *dst);
+	void convert(const unsigned char *src, size_t size, QImage *dst);
 
 private:
+	void convertYUV(const unsigned char *src, unsigned char *dst);
+
+	unsigned int format_;
 	unsigned int width_;
 	unsigned int height_;
 	unsigned int y_pos_;